SAN FRANCISCO – Odds are, the Mets will reconfigure their rotation for this weekend and have Steve Trachsel pitch on Sunday and Victor Zambrano on Monday.

Manager Willie Randolph said yesterday that having Trachsel go on Sunday against the Braves was “an option.” He cited the fact that the Mets do not play today as the reason.

“Whatever I do on Sunday, whoever doesn’t pitch that day will pitch on Monday,” Randolph said.

The Mets are slated to have Pedro Martinez open the Brave series on Friday with Tom Glavine on Saturday. The Mets open a home series against Washington on Monday.

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Michael Tucker, whom the Nationals released on March 30, is now with the Mets. The team signed the 34-year-old outfielder yesterday to a minor-league deal.

Tucker, who hit .158 for the Nationals in spring training, hit .239 with five homers last year for the Giants and Phillies. He’ll be in St. Lucie for extended spring training.

Tucker is a lefty bat, though, so it’s possible that in addition to providing an extra outfielder he eventually could replace or join Jose Valentin with the Mets. Valentin, a switch-hitter, and lefty-swinging Endy Chavez are the Mets’ only lefty hitters off the bench, and Valentin entered yesterday hitting .095 (2-for-21).

Randolph said yesterday he is not worried about Valentin.

“I keep going back to the same old thing of over-reacting to a few at-bats and being early in the season, obviously,” Randolph said.

“Just looking at pure numbers, obviously he’s not getting as many hits as he probably would like to. But he hit the ball hard [Tuesday] night, and the last two or three times he’s hit, he’s hit the ball well, so when you play the game and you’ve been around the game, you understand that sometimes it takes a while for you to get to where you want to go. But since it’s so early, it’s tough to judge pinch-hitters on 10 at-bats. It’s not fair, to me.”